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CIDR Range

209.131.236.0/25

Addresses
128
128
Sub-ranges
0+
within this block
PTR Density
92.2%
118 of 128 IPs have PTR ~

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

78/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

First and last addresses in 209.131.236.0/25

209.131.236.0/25 runs from 209.131.236.0 to 209.131.236.127.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 209.131.236.0/22.

Announced prefix
Origin AS
Announcement samples
21,815
Last seen
2026-11-13 23:07:29

Frequently Asked Questions

What is 209.131.236.0/25?

209.131.236.0/25 is a CIDR network block containing 128 IPv4 addresses (from 209.131.236.0 to 209.131.236.127). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 209.131.236.0/25 network?

The 209.131.236.0/25 range is allocated to Longmont Power & Communications and announced via AS393552 from United States.

How many IP addresses are in 209.131.236.0/25?

209.131.236.0/25 contains exactly 128 usable IPv4 addresses. A /25 prefix length means 128 addresses are covered by this single routing entry.

Last updated: 2026-11-13 23:09:05 UTC
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